If all goes well, Bollywood superstar Shah Rukh Khan will be seen sharing screen space with his Hollywood counterpart Leonardo DiCaprio in a cross-cultural thriller `Xtreme City`, a tale about two men from radically different worlds.

SRK`s biographer (Still Reading Khan) and screenplay writer Mushtaq Sheikh has penned the script with Hollywood writer-director Paul Schrader, who will direct the movie.

American filmmaker Martin Scorsese has come on board as a producer with David Weisman for the movie, where SRK will essay the role of an underworld gangster while DiCaprio will be playing a New York cop.